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The Cycad Pages
CORALLOID ROOTS AND NITROGEN FIXATION
Juliana Medeiros and Dennis Stevenson
Figure 21

Contents

  1. Introduction
  2. Symbiosis
    1. What is symbiosis?
    2. Nature of the Cycad/Cyanobacteria Symbiosis
    3. Costs and Benefits of the Symbiosis
  3. Cycad Roots
    1. Normal root anatomy and morphology
    2. Coralloid root development
    3. Other Organisms Present in Cycad Roots
  4. Cyanobacteria
    1. General physiology
    2. Cyanobacteria in symbiosis with Cycads
    3. Specificity and Diversity
  5. Nitrogen fixation
    1. Global nitrogen economy
    2. Physiology of nitrogen fixation
    3. Nitrogen fixation in the Cyanobacteria/Cycad symbiosis
    4. Assimilation of fixed nitrogen
  6. Colonization of Cycad Coralloid roots by Cyanobacteria
    1. Recognition between partners
    2. Mode of colonization
    3. Maintenance
  7. Applications
  8. Future Areas of Study
  9. References and Further Reading
  10. Photo Gallery

The Cycad Pages

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Written and maintained by Ken Hill